In the GPS speed mode, the aircraft will not fly out of settings the scope of protection;in other modes, once flying out the scope of protection, immediately trigger the automatic return; within the no-fly zone near the airport, the aircraft's flight altitude and range is strictly limit.

Broken oar protection (Six axis and above aircraft)

Six axis and above aircraft, when one of the motor or propeller is not working properly, aircraft can normal flight or ensure attitude controllable, will not